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Finding the Fourth Proportional to 345,588.78, 477,097.53 and 242,540.07

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Solution

The fourth proportional to 345,588.78, 477,097.53 and 242,540.07 is: 334,835.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,588.78 : 477,097.53 = 242,540.07 : x
  2. Step 2: Convert to fraction form
    345,588.78/477,097.53 = 242,540.07/x
  3. Step 3: Cross multiply
    345,588.78x = 477,097.53 × 242,540.07
  4. Step 4: Simplify right side
    345,588.78x = 115,715,268,323.03
  5. Step 5: Solve for x
    x = 115,715,268,323.03/345,588.78
  6. Step 6: Final answer
    x = 334,835.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.